Frauenberg Castle in Rhineland-Palatinate by EuroTourData
Frauenberg Castle is the restored ruins of the spur castle, built around 1320 as the fortified residence of counts of Sponheim.
Image copyright info
© Creative Commons: Burg Frauenburg-1, author Muck. License: CC BY-SA 4.0. Cropped from original.
Description of Frauenberg Castle
Frauenberg castle has a rectangular plan with an area of about 250 sq.m. The castle was surrounded by a ring defensive walls, which is partially preserved. On the northeast side there are two fully restored round towers between which there is the shield wall.
Source
The article Burg Frauenburg (Frauenberg, Nahe) of German Wikipedia.